Where do i stick the can of freon on my 2003 Dodge Caravan?

Question

i cant find any a/c lines to hook my freon up to. where do i hook it up and how? have you done it before? is it easy? HELP!!! lol

Answer 1

DON'T. Refrigerant under pressure is nothing to screw around with if you don't know what you're doing. Any good shop can do it for you pretyy cheaply.

Answer 2

OK, I could give the classic answer, "Where the sun don't ___!" But I'll be square with you. This can be a dangerous repair if the can blows up in your hand.

There is a "high side" from the compressor and a "low side" all of this translates to pressures. The high side is like 700PSI and the can will explode in your hand if you hook up the hose to the wrong fitting. The low side pressure is only around 15-35 PSI and this is the fitting or valve you want to hook up to.

There are two capped valves that look like the valve stem to a tire. One is high pressure and one is the low pressure or fill point. This is why the shops use pressure gauges to measure the pressures inside both lines while the motor is running and they are adding freon.

Generally speaking, the low pressure line will be the one coming out of the condensor coil which is at the firewall, The high pressure line will be between the compressor and the condensor coil which is located in front of the radiator.

Get them mixed up and Kaboom!, the can will explode in your hand. Have someone physically show you before you proceed.

Good Luck!

Answer 3

Near the radiator you'll see AC lines. There is usually a r134 valve in one of those lines running to the Accumulator. It's probably in plain site but has a cap on it. The fittings should be idiot proof because they are made to not be able to hook up the can, or Ac gauges wrong, They are 2 different sizes. Th Low pressure side is the side you'll be hooking up your can to. Hopefully your can came the an installation set up where you put the can in a handle and squeeze it around the can to pierce the can. Then it locks on the can and you can put the fitting on the line I told you about. Then you need to tighten the wheel on the fitting clock wise and open the little valve on the installer tool to put the refrigerant in. The car should be running when you do this

Answer 4

I'm sorry to say it, but just by asking this question it tells me you should not be attempting this. Go ahead and pay a mechanic the few extra bucks to do the job correctly and safely if you don't know what your doing.

Answer 5

You probably need a set of gauges.

In short: if you don't know what you are doing - Don't.